EP 2043288 B1 20170517 - SIGNAL JUDGMENT APPARATUS AND SIGNAL JUDGMENT METHOD
Title (en)
SIGNAL JUDGMENT APPARATUS AND SIGNAL JUDGMENT METHOD
Title (de)
SIGNALBEWERTUNGSVORRICHTUNG UND SIGNALBEWERTUNGSVERFAHREN
Title (fr)
APPAREIL DE DÉTERMINATION DE SIGNAL ET PROCÉDÉ DE DÉTERMINATION DE SIGNAL
Publication
Application
Priority
- JP 2008051642 W 20080201
- JP 2007118670 A 20070427
Abstract (en)
[origin: EP2043288A1] An FFT unit (170) separates a received symbol by Fourier conversion into a plurality of subcarriers, and a phase difference detection unit (193) detects a phase difference between 4 pilot carriers and data carriers adjacent to the pilot carriers (adjacent carriers). The decision unit (194) decides whether the phase differences between the pilot carriers and the adjacent carriers detected by the phase difference detection unit (193) fulfill a phase difference condition. Then, the decision unit (194) decides that the received symbol is an HTSIG if the number of phase differences that fulfill the phase difference condition is greater than or equal to a predetermined number, and decides that the received symbol is either a SIG or a DATA if the number of phase differences that fulfill the phase difference condition is less than the predetermined number.
IPC 8 full level
H04J 11/00 (2006.01); H04J 99/00 (2009.01); H04L 25/02 (2006.01); H04L 27/26 (2006.01)
CPC (source: EP US)
H04L 25/0228 (2013.01 - EP US); H04L 25/06 (2013.01 - EP US); H04L 27/2647 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB
DOCDB simple family (publication)
EP 2043288 A1 20090401; EP 2043288 A4 20160525; EP 2043288 B1 20170517; CN 101542999 A 20090923; CN 101542999 B 20121107; JP 5015245 B2 20120829; JP WO2008136200 A1 20100729; US 2010008346 A1 20100114; US 8179782 B2 20120515; WO 2008136200 A1 20081113
DOCDB simple family (application)
EP 08704351 A 20080201; CN 200880000493 A 20080201; JP 2008051642 W 20080201; JP 2009512888 A 20080201; US 37615708 A 20080201